GeorgeR's robots

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Sun May 14, 2017 10:10 am

I'm going for carbon fibre for the chassis on this one, if it's not strong enough it's going to break in half rather than bend! But I wanted something light but rigid so it's worth a shot.
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Fri May 26, 2017 9:10 pm

I've made some more progress on the spinner...

Image

It's still lacking any electronics, wheels, motors, or a top, but you get the idea.

I was originally planning on making my next ant kinda Tombstone alike, but after ages playing around with the design I still couldn't settle on something I was happy with. About a week ago I started sketching overhead bar designs and it came together really quickly, so I went with it. I now wish I'd made the weapon bar a bit longer, but this should work for now.
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Fri Jun 16, 2017 12:12 am

The electronics on the spinner, now named Vampire, are done, which means I couldn't resist doing a quick spinup test on the weapon...

https://www.youtube.com/watch?v=hBC9Hv6bW1g

All that's left now is to mount everything in the chassis and make a top panel. Can't wait to get this into action, it should be pretty fearsome.
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

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peterwaller
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Re: GeorgeR's robots

Post by peterwaller » Fri Jun 16, 2017 7:19 am

That is looking good.
I particularly like the aluminium angle you have made the chassis sides from that is a neat bit of bending.

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Fri Jun 16, 2017 2:29 pm

Thanks Pete, I'm really pleased with how the aluminium angle turned out.
The neat bends are all down to a little former I made when building Zero, it's a bit of brass bar 1/4 x 3/4 x 4inch, I filed a 6mm radius along one edge and a 2mm radius along another, and bend the metal around the radiused edges. I've used it for all the bends on Zero, the titanium armour for Axiom, and now for the aluminium angle on this.
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Fri Jun 23, 2017 11:02 pm

Ready in plenty of time before the aws.... Vampire.

Image
Image

Specs

84x91x30mm, 148g
NanoTwo with 30:1 500rpm drive motors, Afro 12A powering a LeTodar 2204 2300kv brushless for the weapon.
1.5mm carbon fibre, 1.6mm aluminium angle, 0.75mm polycarb for the chassis and armour. 100mm, 20g, grade 5 titanium bar for the weapon.

It spins up really nicely and it seems I've managed to get the bar well balanced with minimal vibration. Can't wait to let this loose in the arena.

And here's the team ready for next week...

Image
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

Tashic
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Re: GeorgeR's robots

Post by Tashic » Fri Jun 23, 2017 11:08 pm

Cool!
These robots look so nice!

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Sat Jun 24, 2017 4:19 pm

Did a bit of weapon testing, I heard the traditional method was to smash up a can...

Image

I didn't get above 1/4 throttle due to my improvised arena but it certainly did the job. Seemed to be stable when dishing out the hits too, although obviously the can weighs less than an ant so that's won't necessarily be the case next week.
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Sun Jun 25, 2017 9:37 pm

Vampire's now sporting a 130mm diameter asymmetric bar...

Image

The other bar was originally made for a different spinner design so didn't have the long reach that the overhead design allows, I'll probably give both a run out next week to see how they fare.
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Wed Dec 06, 2017 9:51 pm

It's been ages since I last did any ant building but I've finally got the weapon finished for Valkyrie, my new drum spinner...

Image

It's a lump of 7075-T6 aluminium with high tensile M3 bolts for the teeth, and the holes either end mounting onto a pair of small brushless motors. The rest of the bot is going to be pretty similar to Vampire, but with this mounted across the front rather than the big bar.
Making this by hand has taken a rather silly amount of time, but after many hours with hacksaw, file and hand drill, it's done and I can finally get on to the easy part of building the rest of the robot. Hooray!
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

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Shakey
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Re: GeorgeR's robots

Post by Shakey » Fri Dec 08, 2017 4:23 pm

Now that is a nice bit of metal!
Nuts And Bots - For all your components and ready built antweights!

Alex Shakespeare - Team Shakey / Nuts And Bots / Team Nuts:
AWS 44, 45, 49 & 51 Winner - Far too many robots!

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Fri Jan 12, 2018 1:22 am

With Ant Freeze coming up on the horizon I've finally got some more work in on Valkyrie...

Image

Still got to do the electronics and lots of fine tuning and finishing, but at least the chassis is mostly done.
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

Derek Dudge
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Re: GeorgeR's robots

Post by Derek Dudge » Fri Jan 12, 2018 1:25 am

Not much to say other than your thread is fantastic. Those things look terrifying

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peterwaller
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Re: GeorgeR's robots

Post by peterwaller » Fri Jan 12, 2018 12:10 pm

As I mentioned before your metal work bending is very neat.
I see you have two brush-less motors are you planning on two controllers as I don't think one can drive two motors.

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GeorgeR
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Re: GeorgeR's robots

Post by GeorgeR » Fri Jan 12, 2018 1:51 pm

Thanks guys. Yes two controllers is the plan, one definitely wouldn't work for two brushless motors. I've got a couple of Emax Bullet 6A esc's, which I've not tested yet but are very small.
Team Zero
Zero - rambot - - Vampire - horizontal spinner
Axiom - axebot - - Valkyrie - drum spinner (under construction)

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